What fuel rail do I need for bigger injectors?

[killjoy]

Anybody know?  Also this is for my s13 SR.  Also anybody know if you have to reprogram the ecu if you upgrade to a 300zx mafs?

[uiuc240]

they are side feed. &nbsp;they will drop right in the rail you already have. &nbsp;you will need an ECU tune to incorporate the higher flow and the MAFS will need to be figured in to the map as well. &nbsp;send it to JWT, tell them what you have, and get it done. &nbsp;you're best off finding an extra ECU though, since they have a 5 week freaking backlog!!!! <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/mad.gif" border="0" valign="absmiddle" alt=':angry:'>

Eric